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<div class="titlepage"><div><div><h2 class="title">
<a name="gtk-migrating-GtkAboutDialog"></a>Migrating from GnomeAbout to GtkAboutDialog</h2></div></div></div>
<p>
    Since version 2.6, GTK+ provides the <a class="link" href="GtkAboutDialog.html" title="GtkAboutDialog"><span class="type">GtkAboutDialog</span></a> widget as a 
    replacement for the <span class="structname">GnomeAbout</span> dialog in 
    the libgnomeui library.
  </p>
<p>
    <a class="link" href="GtkAboutDialog.html" title="GtkAboutDialog"><span class="type">GtkAboutDialog</span></a> supports all features found in <span class="structname">GnomeAbout</span>.
    The <span class="structname">GtkAboutDialog</span> API is bigger, since it follows 
    the GTK+ policy to have getters and setters for all widget properties, 
    but it isn't much more complex than <span class="structname">GnomeAbout</span>.
  </p>
<p>
    To convert an application that uses <span class="structname">GnomeAbout</span> to 
    <span class="structname">GtkAboutDialog</span>, as a first step, replace calls 
    like
    </p>
<div class="informalexample"><pre class="programlisting">
    const gchar *documentors[] = { 
      "Documenter 1", 
      "Documenter 2", 
      NULL 
    };

    const gchar *documentors[] = { 
      "Author 1", 
      "Author 2", 
      NULL 
    };

    GtkWidget *about = gnome_about_new ("GNOME Test Program", VERSION,
					"(C) 1998-2001 The Free Software Foundation",
					"Program to display GNOME functions.",
					authors,
					documenters,
					_("translator-credits"),
					"logo.png");
    </pre></div>
<p>
    by something like 
    </p>
<div class="informalexample"><pre class="programlisting">
    GdkPixbuf *logo = gdk_pixbuf_new_from_file ("logo.png", NULL);
    GtkWidget *about = g_object_new (GTK_TYPE_ABOUT_DIALOG,
                                     "name", "GNOME Test Program", 
                                     "version", VERSION,
			             "copyright", "(C) 1998-2001 The Free Software Foundation",
				     "comments", "Program to display GNOME functions.",
			             "authors", authors,
			             "documenters", documenters,
			             "translator-credits", _("translator-credits"),
				     "logo", logo,
                                     NULL);
    g_object_unref (pixbuf);
    </pre></div>
<p>
    If the <a
href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#g-object-new"
><code class="function">g_object_new()</code></a> construction scares you, you can also use 
    <a class="link" href="GtkAboutDialog.html#gtk-about-dialog-new" title="gtk_about_dialog_new ()"><code class="function">gtk_about_dialog_new()</code></a> to construct the dialog and then use the 
    setters for the individual properties.
  </p>
<p>
    Once you are done with the initial conversion, you may want to look into 
    using some of the features of <span class="structname">GtkAboutDialog</span> 
    which are not present in <span class="structname">GnomeAbout</span>.
    </p>
<div class="itemizedlist"><ul type="disc">
<li><p>
        You can specify license information with the 
        <a class="link" href="GtkAboutDialog.html#GtkAboutDialog--license" title='The "license" property'><span class="type">"license"</span></a> property
      </p></li>
<li><p>
        You can add separate credits for artists with the 
        <a class="link" href="GtkAboutDialog.html#GtkAboutDialog--artists" title='The "artists" property'><span class="type">"artists"</span></a> property
      </p></li>
<li><p>
        You can add a pointer to the website of your application, using the 
        <a class="link" href="GtkAboutDialog.html#GtkAboutDialog--website" title='The "website" property'><span class="type">"website"</span></a> and <a class="link" href="GtkAboutDialog.html#GtkAboutDialog--website-label" title='The "website-label" property'><span class="type">"website-label"</span></a> properties.
      </p></li>
<li><p>
        If your credits contain email addresses or URLs, you can turn them 
        into clickable links using <a class="link" href="GtkAboutDialog.html#gtk-about-dialog-set-email-hook" title="gtk_about_dialog_set_email_hook ()"><code class="function">gtk_about_dialog_set_email_hook()</code></a> and 
        <a class="link" href="GtkAboutDialog.html#gtk-about-dialog-set-url-hook" title="gtk_about_dialog_set_url_hook ()"><code class="function">gtk_about_dialog_set_url_hook()</code></a>. 
      </p></li>
</ul></div>
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